in that case, the u.s. government, i think working with israel, but the united states government to felt -- the u.s. government develop a computer warned that went into the nuclear processing facilities in iran and disrupted those computers. >> it was developed by the u.s. government? >> yes, according to reporters. them what was its purpose? was it a defense mechanism, the defense department? >> no, it was a purely offensive, pre-emptive effort to slow the nuclear weapons processing capability of iran. >> you mentioned a charlie miller, and mr. miller is in st. louis, joining us today. mr. miller, what was your goal in breaking into the iphone? >> well, and the particular case, it was for a contest, like robert mentioned. they have this contest every year. hackers across the world enter it. they have various devices. if you break into the devices, you win some cash it and devices also. i want contests earlier in my career. it was more about showing things like the iphone or desktops running apple software